A protective device for a universal shaft (3) has an attachment element (6), a tubular protective guard (7) and a latching device (24, 25). The attachment (6) is positioned around a shaft journal (2) projecting from a housing (1) and is attached to said housing (1). The tubular protective guard (7) extends along a longitudinal axis L and is positioned around a universal shaft (3) connected to the shaft journal (2). The latching device has at least one latching element (24) and at least one latching projection (25). The latching element (24) is arranged on either the attachment element (6) or the protective guard. The latching projection (25) is arranged on either the protective guard (7) or the attachment element (6). The latching element (24) is displaceable between a latched position and a release position. The latching element (24) is elastically formed and engages, in the latched position, behind the latching projection (25).

In a steering system, a first universal joint includes a first yoke coupled to an intermediate shaft. A second universal joint includes a fourth yoke paired with a third yoke coupled to the intermediate shaf and a shaft attachment portion joined to the fourth yoke and in which a bolt insertion hole allowing a pinion shaft to be clamped is formed. When an angle between the intermediate shaf and a steering shaft is set to θ1, an around-axis angle of the first yoke in a rotating direction is set to ω1, and an angle between the intermediate shaft and the pinion shaft is set to θ2, a junction angle between the fourth yoke and the shaft attachment portion in the rotating direction is adjusted to set an around-axis angle of the bolt insertion hole in the rotating direction to a preset angle ω2.

In order to achieve lightness and improve hardness of a brake disk, and minimize weight and improve productivity through an improvement of a coupling structure of a disk plate and a hub, provided is a method of manufacturing a brake disk including a disk plate, which provides a friction surface and is formed with a hole at a center, and a hub, which is coupled to the hole formed at the center of the disk plate, the method including: preparing a disk plate; preparing a hub in the form of a flat plate; positioning the hub in the form of the flat plate on one surface of the disk plate; and bonding the disk plate and the hub by an interference fit.

A clutch ring gear assembly and method of construction thereof are provided. The assembly has a bearing seat including a flange extending radially outwardly from a central axis. The flange has a plurality of holes spaced circumferentially from one another about the central axis. A ring gear carrier includes a rim extending radially outwardly from the central axis. The rim has a plurality of through openings. Each of the through openings of the rim has an annular boss extending axially away from the rim in generally parallel relation to the central axis. The annular bosses are disposed within the holes and have hollow, annular end portions flared radially outwardly into engagement with the flange of said bearing seat to fixedly attach the ring gear carrier to the bearing seat.

A brake component is disclosed. In various embodiments, the brake component includes a ceramic matrix composite (CMC) structure including a plurality of nominally dense plies, interleaved with a plurality of interlayers, wherein the plurality of nominally dense plies and the plurality of interlayers are bonded by at least one of a Field Assisted Sintering Technique (FAST), a Spark Plasma Sintering (SPS) process, or a localized heating process. In various embodiments, the brake component is a rotor disk or a stator disk.

An interference fit connection for a shaft comprises a hub having a conical through opening and a reduction sleeve having a cylindrical through opening for arrangement on the shaft and a conical outer circumference, where the cone angle of the conical outer circumference corresponds to the cone angle of the corresponding conical through opening of the hub. The hub is a two-component part having a first component made of steel and a second component made of fiber-reinforced plastics material. The second component made of fiber-reinforced plastics material is designed as a ring which is arranged on the outer circumference of a sleeve portion of the first component, which sleeve portion surrounds the reduction sleeve, so as to surround this sleeve portion. The fiber-reinforced plastics material has a higher modulus of elasticity than the steel of the first component.

A hub joint assembly for frictionally connecting a shaft to a connector is provided. The hub joint assembly includes a coupling hub including a collar portion and a flange portion. The collar portion includes a bore having an inner surface that is configured to be positioned adjacent to the outer surface of the shaft. The collar portion further includes an outer surface that may be conical. The flange portion extends from the collar portion and is configured to be coupled with the connector. The hub joint assembly further includes a clamp ring including a bore having an inner surface. The inner surface may be conical and configured to mate with the outer surface of the coupling hub. A passage is defined in the clamp ring and extends from an outer surface of the clamp ring to the inner surface of the clamp ring.

Multi-disc clutches are known which usually have a first clutch pack consisting of steel discs and a second clutch pack consisting of friction discs. A disc for a multi-disc clutch is proposed, which has a disc body. The disc body is in a form of an annular disc, and has a driver contour on its inner circumference and/or outer circumference for mounting the disc in a rotationally fixed manner. The disc body is formed by edgewise rolling on the inner circumference thereof.

A complex ring element includes first and second rings arranged such that their axes lie on a shared axis and disposed adjacent to one another when viewed in the direction of the shared axis, with one of the first and second rings representing a shaft of a rotor or being connected to a shaft of the rotor. A connecting element made of metal interconnects the first and second rings of metal such that outer peripheral surfaces of the first and second rings are partially overlapped when viewed in the direction of the shared axis. The connecting element is configured to extend circumferentially as viewed in the peripheral direction about the shared axis and is produced by an additive application method.

A boot for a shaft assembly joint and method of construction thereof are provided. The boot has a flexible hollow wall extending about a central axis between a first end and a second end. The first end has a skirt portion configured for snug engagement with an outer surface of a housing of the constant velocity joint and the second end has a neck portion configured for snug engagement with an outer surface of a shaft extending away from the constant velocity joint. At least one of the skirt portion and the neck portion has interior surface formed of a first material having a first coefficient of friction and an exterior surface formed of a second material having a second coefficient of friction, the first coefficient of friction being greater than the second coefficient of friction.